Diagonal friction pin shuttle



April 9, 1929.

I. sr ow 1,708,595

.DIAGONAL FRICTION PIN SHUTTLE Filed April 15, 1928 I //////////AJ 6 ATTORNEY.

Patented Apr. 9, 1929.

UNITED STATES ISAAC SNOW, OF LAWRENCE, MASSACHUSETTS.

DIAGONAL FRICTION PIN SHUTTLE.

Application filed April 13,

This invention relates to shuttles and particularly to those of the self-threading type used in automatic looms although it can be used in connection with a hand threading shuttle.

In most shuttles there is a threading chamber in which is a shuttle block which has at the forward end a horn which directs the yarn down and back onto a vertical or substantially vertical pin around which the yarn passes out the eye in the side of the shuttle, and in addition it is usually necessary to provide some friction device to keep the thread on the bobbin from running out too fast.

The purpose of this device is to provide a'pin which shall not only serve the purpose of directing the thread as it runs out lengthwise of the shuttle at right angles, or substantially right angles through the eye in the side, but shallalso serve as an effective friction device. I

This is accomplished substantially by substituting for the usual vertical pin, a pin which is preferably of larger'size than is customary, which extends from the side of the shuttle opposite the eye horizontally and diagonally forward towards and aheadof the shuttle eye whereby the thread is forced instead of making a turn of 90 to make a compound or spiral turn of substantially a greater are whereby it engages with a much larger surface of the pin than is usually the case.

I may extend this pin horizontally forward at any suitable angle and I may slant it up or down although I prefer to have it horizontal. In any case it takes the place of the usual vertical front guide pin and also serves the purpose of a friction device.

I may also, in place of, the pin, form the metal itself to present a diagonal horizontal forward edge which serves the same purr pose.

In the drawings, Fig. 1 is a plan view of. ashuttle equipped. with my device.

Fig. 2'isan elevation from the side of the shuttle eye, part of the wood being broken away to showthe shuttleblock.

Fig. 3 is a front elevation, ig. 4 a side elevation, Fig. 5 a back elevation of a shuttle block removedfrom the shuttle. Fig. 6 is a bottom view. I

Fig. 7 is a view similar to Fig. 4 of a modified type of shuttle block.

1928. Serial No. 269,700.

the usual bobbin recess 10 for a bobbin B i on which the yarn C is wound. 11 is a threading chamber cutin the wood in extension of bobbin recess 10 and 12 is a shuttle block recess cut out of the wood and forming part of or positioned in threading chamber 11.

18 and 19 are vertical cuts forming part of the block recess for the projections 14 and 47 from block F. The shuttle eye inv the .wood is represented by 13 and this connects through a slot 14 with the forward part of threading chamber 11.

The shuttle block F, which is generally made of metal, is positioned in the shuttle block recess 12 and is generally held in place as by a screw S in the usual manner. It is provided witha longitudinal block threading chamber 31 in extension of the shuttle threading chamber 11 and its top is formed as a thread directing guide plate 32 which curves or slopes down and over at 38 from the top 133 into the block threading chamber. As shown, this guide plate has a blunt thread guiding finger or nose 3d at the front and a thread guiding finger at the back, there being a cut away space 185 in front of the finger 35 between it and an intermediate thread retaining guide hook G which is formed in'extension of the guide plate 32. This hook, where it starts at the cut away part 135 extends away at 40 from the shuttle eye and backwards and thence forward at 4-1 in the opposite direction towards the shuttle eye and towards the thread outlet 39 which is cut away from theweb 129 extcnding back from horn 36, which extends down from the front guiding finger 34. This reverse or end section 41 of hook Gr also extends forward at 42.

The cut away part or the base 40 of hook G will catch any yarn which is ballooned or thrown forward from the bobbin and when the yarn has slipped over 33 and thence underneath andlinside of 41 and 42. as it normally unwinds in a directionthe curval the delve at 41 mid ture 6f which] is stibstafitially the same as of hook G, it is very unlikely to .unthread. Besides this; if the thread or yarn O should slip. around finger 34: it will be caught in the forward extension 42 of guide hook G.

The tip end 37 of horn 36 preferably extends down below threed diitlet 3 9 tlihefelly the thread directecl into the thread outlet and it is made difliultrbrfllt to cgme out.

The principal featifii deviee however is the guidepii; iyhicli is iref'erably iiiiich larger thttn th'eusuah ertical metal guide pin and prefetably is of glass florporce-e use or ome i ner-n1 whif eh resists Wear,

This guide 1311i is shown as being passed o through a hole in projection {l t bf the slilittle block, tliehce horizontally from that sidejvhlch ,b"posite the shuttle eye aiid the thread olitle 39 diagonally forward into 'a pirl hole ldeither in the body of the horn 3 6 8i between itand the 129, across the thread otttlet' 39; The upper edge of this hill. lirefeiably above theloyver end 42 of the gilide' hook his considerably above the lower end 37 of the horn 36; It is p'ositioiied between gtiide hook and horn 36.

As shaman Fig; 7'; Inlay owe er distnss with the back guidi g fis er 35 and There is the a pin h is t ieugili wh 1161s '63 in the ijin; H .iji 'sses into zifibther t i V r N V. As een in 8, I locate pin 11616 73 "soinevi lltitabdye tr belat hole 75 ithefebyf plin H ill ii-bt only lepe stag meny ed wisest-my for'w'ard but list up tr down :is desired.

As shown in Fig. 9 I m y use a shuttle "510 1; Militant ti e-t is as tlileatl directjiiig guiue nteet the tea 7 w "TO btit thei e is ldfi itudinal'threadifi across in he t or which men mg hem/smelly and a agsssuy is 'Iotititd the names guide P fiH- t. r i. p v,

V shown iii 10, ttse shuttle b ask P havise threading them-be- 84,

: meals are reside/sue gems ie, streng s integral-frietidn means a generally cylindrical fi ir'm as iildiealted bei; The csfiitineesn in a semis; hsveig at Ebbliin is e'sesthrseenig guesse in extes'sias memes, emcee bleak recess pow streets were thitdfiig saunter, a statue eye in the sidealid aslot coiiiieotin 'i said eye with the forward part of the t reading chamber; of ashuttle block positioned in the shuttle block recess and formed With'a longitudinal block threading chamber in extiisiioii of the shuttle: threading chamber and a thread directing guide plate which slopes dawn and oi er from the top into the block threading chamber, said guide plate having a thread guiding finger at the front dndd thli id guiding finger at the back and betuieeiitllein in interinediatethread retain in guide liook, said guide libdk being in tension of the guide plate away frointhe shuttle eye thencein the opposite direction towards the shuttle eye and forward, said shuttle blotlt having at the front extending dowii froin the front guiding finger anh'orn which extends downbeloii the end sitid gmde hook; and a fr ctiongiude pinwhich extends horizontally from the side op'p'o'site the shuttle eye diago ally forward across and above the bottoin of the threading chamber in front of the guide liblik-bettveen it the frontend of the horn, its upper edg i being above thellower end of the guide lioo t.

2. A steals block levies silent-mange threadin chamber, athread ,oiitle t on title r si e and a thread directing guide Plate Which slopes down at the top from the side chainbei", said guide iblate haying a thread emining; gui'1e hook iii eitensioii thereof which tui'nlsu'nde r and forward towards the side of the thread outlet, said shuttle block also usvieg a the front a horn tthieh fexteiids' down below the end of said uide use; tends new the side or the threading elem bei dhidosite said threa d'outlet diagonally ahd horizontally forward between the hook and the horn and across said thread outlet.

A shuttle'blo ck having a longitudinal threading chdinliei', a thread outlet on side and a thread ail-stung, guide plate which slopes down at the top non-i the side of the thread butlet iiitb such thtea ding d a friction gen n Whi'll ex- 7 of the eyeoutlet iiito such threading ehitnher, and at the froiit eiid a horn; and a friction guide'pin which extends from the side of the threading cl ianlber opposite said thread outlet [diagonally and horizontally foi wai'd.

4 A shuttle block haying a longitudinal" threading climber thread outlet on one side, and'jtt' the front ends horn; and a frictioh guide p'in which extends from the side er the tlireftdin g chamber Opposite said theses Outlet disgossuy and horizontally forward A l 4 ansnmue block hating a longitudinal threading chamber; a thread outlet on one side, and at the front end alio'rn; and afriotion guide memb r whili xtends froin the side of the three-dia chamber esteem said thread outlet diagonally and horizontally forward.

6. A shuttle block having a longitudinal threading chamber, a threadoutlet on one side and a thread directing guide plate which slopes down at the top from the side of. the thread outlet into such threading chamber, said guide plate having a thread retaining guide hook in extension thereof which turns under and forward towards the side of the thread outlet, said shuttle block also having at the front end a horn which extends down; and a friction guide pin which extends from the side of the threading chamber opposite said thread outlet diagonally forward between the hook and the horn and across said thread outlet.

7. The combination in a shuttle having a bobbin recess, a threading chamber in extension thereof, a shuttle block recess positioned in said threading chamber, a shuttle eye in the side and a slot connecting said eye with the forward part of the threading chamber; of a shuttle block positioned in the shuttle block recess and formed with a longitudinal block threading chamber in extension of the shuttle threading chamber, a thread outlet which registers with the shuttle eye, and a thread directing top guide plate which slopes down and over from the top into the block threading chamber, said guide plate having between the front and back of the shuttle block, an intermediate thread retaining guide hook, said guide hook being in extension of the top guide plate away from the shuttle eye and having the back edge of its base raking backward and thence in the opposite direction towards the shuttle eye and tapering forward, said shuttle block having at the front a guiding finger and a horn which extends down therefrom; and guiding means positioned in front of and above the tip end of the guide hook.

' 8. A shuttle block having a longitudinal threading chamber, a thread outlet on one side and at the top a thread directing guide plate which slopes down and over away from the thread outlet into the threading chamber, said guide plate having between the front and back of the shuttle block an intermediate thread retaining guide hook, said guide hook being in extension of the top guide plate away from the shuttle eye and having the back edge of its base raking backward and thence extending in the opposite direction towards the thread outlet and tapering forward, said shuttle block having at the front a guiding finger and a horn, and a guiding member positioned in front of and above the tip end of the guide hook.

9. A shuttle block having a longitudinal threading chamber, a thread outlet on one side and at the top a thread directing guide plate which slopes down and over away from the thread outlet into the threading chamber, said guide plate having between the front and back of the shuttle block an intermediate thread retaining guide hook, said guide hook being in extension of the top guide plate away from the shuttle eye and having the back edge of its base raking backward and thence extending in the opposite direction towards the thread outlet and tapering forward.

10. A shuttle block having a longitudinal threading chamber, a thread outlet on one side and at the top a thread directing guide plate which slopes down and over away from the thread outlet into the, threading chamher, said guide plate having between the front and back of the shuttle block an intermediate thread retaining guide hook, said guide hook being in extension of the top guide plate away from the shuttle eye, thence extending in the opposite direction towards the thread outlet and forward.

rsAAo snow. 

